dinesen



L, DINESEN. MILKING APPARATUS. APPLGCAHDN HUD SEPI. l5. |91?1 Patented Sept. 2l, 1920.

'n SHEETS-SMECJ L L. DINESEN.

MILKING APPARATUS.

APPLICMION msu SEPT. l5. 1911.

1,353,570, Patented Spt. 21, 1920.

2 SHEETS-SHEET 2.

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2a W/ T/YESSES 5M www UNITED sTAres..pATENT OFFICE-...5.

. A i i' o 1 i l i LAURITS DINESEN. QF MINNEPOJIIS. MINESOT. ASSIGNO T0 PERFECTION MANU- FAC-TUBING C SOTA.

, Specification of Letters Patent.

QMPANY. OF MINNEAPOLIS, MINNESOTAIA CORPORATION F MINNE- MILKING APPARATU lutcnted Sept. 21, 1920.

Application tiled September 16, 1917. Serial No. 191,609.

lli it linoun (hut l, h u'in'rs Dimmi-zx, a citizen ol' thtl Vl'nitlul States. residing nt .\linncapolis. in tluI rountv ot' Hennepin und Stute of Minnesota. hui-c invented certuin new und useful linpnnrinents in Milking .\pp:irutus; und l do hereby' declare the4 following to he n i'ull. rieur. und exact description of the invention. such as -will enable others skilled in thil :irl to which iteppertziins to mnke und usothe same.

M v invention relates to milkinr appurutus, and particularly is directe to the provision of au improved means for produring pulsations required in the milkin action. To the above ends` generally state the invention consists of the novel vdevices and combinations of devices hereinafter described und defined in the claims.

In the '.iccoinpunyin r drawings, which illustrate the invention, llike characters indicate like parts throughout the several views.

Referring to the drawings z` Figure 1 is a plan view showing thetop of a milk can and with my improvedY pulsating mechanism applied thereon; i, v

.FigI 2 is av sirlley-elevationiof the parts shown inFig. 1;.

Fig. 3 is a section taken the line mi or of Fig. 1;

Figs. 4 and 5 are views partly in plan and partly in horizontal section on the irregular line x4 a," of Fig. 2, but illustrating different positionsI of certain of the movable parts; Y

Fig. G is a detail' in section on the line m of F ig. 4, someparts being removed;

Fig. '7 is a. detail in sectiontaken on the line mi of Fig. 5;?

the same line as Big. 4 showing a portion of one end of the; cylinder of the-air engine; Fig. 9 is a horizontal section on` the line m m9 of Fig. 3; Y Fig. 10' is u bottom plan viewfofthe controller valve; andv i Fig. 11 is aT section showing in detail, one of' the tcat cups of the milking apparatus.

In the preferredembodiment iof my invention. the pulsutori-mechnnism'is applied on top of the cover of the milk receiving pail of the milking apparatus, andcorn- .prises. umongother things, sivcylinder and piston, suction actuated air engine. In the drawings, mil'k'can is indiapproximtely on- Fig. 8 `is an enlarged horizontal section on .thereby rigidi rated bythe numeral 1 and its tightly fitted cover by the numeral 2. Rising from and rigidly secured on the cover 2, is a metallic huh' 3 that is formed with n centvalair chamber 4. .The threaded end ot a cou- B0 pling sleeve 5 is passed axially thron h the cover 2 and screwed into the cham er 4, attaching the hub 3 to the said cover. T e sleeve 5 affords a seat for a check valve 6.

The upper portion of the hub 3 is faced to afford a valve seat for an oscillatory controller valve 7,.wl1ich latter is pivotally connected thereto by means of a stud 8. As shown, this controller valve has a, sleeve-like hul()i 9 that directly engagesA with the said stu The cylinder 10 might be cast integral with the hubT casting-3;-but,-as shovin,` 1t is separately formed but ri idly secured thereto, and isf-provided with heads 11 detachably. heldin `position by threaded engagement. Working within the cylinder is a piston 12. The piston 12, on top, has a l'ug 13 that works in a s lotll lin the top of the 80 cylinder, andy to this logis rigidly attached a T-shaped trip arm15 equippedfon its head with tappets 16 laterally o'set from but .paced longitudinally of the exis of the cylinder and iston. i

In the v 5 ve seat formed in the upper face of 'the hub 3, are circumferentially spaced Orts 17-173 lewis, 19-193 20 und 21.

he ports 18-18, through air conduits 22 are connected to the opposite ends of the cylinder 10, and lthe conducting capacitiesof these passages 22 are adapted to be regulated by small needle valves 23 (see Fig. 8) shown fist adapted to be held in their set positions by Small set screws 24. The ports 17--17 95 open to the atmosphere :through diametrically' opposite sides of the hub 3. The ports 19---719'a are connected by-a channel 25 (see particularly' Fig. 9). formed in the lower portion of the hub 3. This channel 25 is 100 `in constant communication with the vacuum or suction tube 26 that is connected directly or indirectly to an air pump or other well known'means 'for producing partial vacuum or suction. This constant partial vacuum is maiintained in the milk can, and to this end, the channel 25, which is in constant communication with the vacuum pipe 26, is`eonnected to the chamber 4 of the hub 3,- at a point above the check valve 6, by means of expanded; the far end of the cylinder .1() will be open to th'e atmosphere through the said ports 18, 38 and 17,150 that the piston is then Yfree to move and the near end of the cylinder will be connected to the vacuum tube 26, through the said ports 18, 39 and 19, and the conduit 25, so that the piston will then be caused to move back to the position indicated in Fig'. 4. lVhen the pistou makes this'hackward movement, the ac* tuating lever 43 and controller valve will be given movements such as above described in detail, only, of course, in the opposite direction.

In the manner above described, the piston will continuously reciprocate and the controller' valve will be intermittently oscillatcd, producing the alternate impulses in the teat cups required to produce the proper milking action, and all the time, of course, a constant partial vacuum will be maintained in the milk can, and hence, in the milk delivery tubes of the apparatus` Furthermore, only one pressure impulse is produced for each complete movement of the piston and, moreover, the movement of the valve consumes but a. very small part of the interval of time taken for a. completelmovement or reciprocation of the piston. This, of course, gives relatively lon pressure impulses, in respect to the Spee of movement of the piston. The speed of movement of the piston may be .varied by adjustments of the small choke valves 23 in the conduits 22, it being, of course, understood that by opening the said valves, the speed of the piston may be increased and that by: more nearly closingr the said valves, the speed of the piston movement may be decreased. ily such regulations, the apparatus may be adjusted for just the proper drawing .action in the teat cups. The controller valve, so-callcd, as will be understood from the foregoing description, serves not only to alternate the pressure impulses in the `teat cup conncctions. but also controls the movements of thc piston of the reci rocating engine or fluid pressure motor. he clliclency of the apparatus described has been demonstrated in practice.

ibut ll claim is 1. In a milking apparatus, the combination with a milk receptacle, of a cooperating cylinder and piston, a tcat cup milk onnef-tion leading to said reccptaclc. :l teat :iup air connection, a vacuum tube, a valvc scat having three atmospheric ports. two p rts connected one to cach end of said cylinder, two ports connected to said vacuum tube and a port in communication with said tent cup air connection, a controller valve having ports cooperating,r with the scat p'orts enumcratcd to alternately connect the oppositc ends of sa-id cylinder to thc atmos.

phere and to said vacuum tube and to alterA nately connect the port of said cat cup air connection to the atmosphere and to said vacuum tube, and connections whereby said piston will move said controller valve altcrnatcly from one position to another.

In a milking apparatus. thc combina tion with a milk receptacle, of a cooperating cylinder and piston, a tcat cup milk conncc tion leading to said reccptaclc. a teat cup air connection, a vacuum (ubc, a valve scat having thrcc atmospheric ports, two ports mnnected one to each end of said cylinilcr, two portsconnected to said vacuum tubc and a port in communication with said tcat cup air connection. a controller valve having poits cooperating with the seat ports cnnmcrated to alternately connect the opposite ends of said cylinder to the atmosphere and to said vacuum tube and to alternati-ly connect the port olE said teat cup air connection to the atmosphere and to sani vacuum tube, a valve-actuating pivoted lever having r. limited movement in respect to said controller valve, a tappct carried by said piston and operative on said actuating: lcvcr and a spring for dnormally maintaining the actuated end of the lever to one side or the other of its pivot. said tappct adapted to move the lever alternately from one side to thc other of its neutral position in respect to its actuating spring.

3. In a milkingr apparatus. the combinal tion with a milk receptacle, ot' a coiipcrating: cylinder and piston, a teat cup milk conncction leading to said receptacle, a. teat cup air conncctnin, a vacuum tube, a valve scat havingr three atmospheric ports, two ports connected one to cach end of said cylinder. two ports connected to said vacuum tube and a. port in communication with said feat cup air connection, a controller valve hav ing.: ports cooperating: with the seat ports enumerated to alternately connect the opposite ends of said cylinder to thc atmosphere` and to said vacuum tube and to alternately connect the port of said tcat cup air connection to the atmosphere and to said vacuum tube, which controller valve is pivotally mounted and which ports are circumferentially spaced around its pivotal axis, and connections whereby said piston will move said controller valve alternately from one position to another.

l. lu a milkingr apparatus. the combinaltion with a milk receptacle, of a coperating cylinder and piston. a teat cup milk connection leading to said recciitacle. a tcat cup air connection, a vacuum tube, a valve seat hav in, Y three atmospheric ports. two ports connected one lo cach end of said cylinder, two ports conmctcd to said vacuum tubc, and a port in communication with said teat cup air connection. a controller valve having ports coperating with the ports enumerated to alternately connect the opposite ends of `eaid cylinder to the atmosphere. and to said vacuum tube and to alternately Connect the port of said teat rnp Iair connection to the atmosphere and to said varnnm tube, whieh controller valve in pivotally mounted and which ports are rirelnnl'erentiall v .Spared around its pivotal axis, a` valve-actiuiting pivoted lever having :1 limited movement in respect to said controller valve, a tappet carried by said piston and operative on said artnatiinr lever and a spring for normally maintainiingr the actuating end of the lever to one side or the other ot' its pivot, mid tappet adapted to move the leve alternately from one side to the other ot' itel neutral position in respect to its actuating spring.v

In a milking apparatnh, the combination with a receptacle and vacuum c0m mnnieating means, of a cover provided with a teat'cap connection` an oscillating valve carried by said cover interposed be tween said means and `mid connection, a ryL inder provided with ports from its ends to said valve, a double-acting piston operable therein, said valve havinr ports therein adapted to intermittently place the connec-` tion in eomn'iunieation with the vacuum means and with the atmosphereend alter nately place the opposite ends of the eylin der in eonnminieation withsaid means and with the atmosphere and means connecting the piston to the valve, whereby the valve will be moved upon the movement of the piston. y

6. In a milking ap aratus, the combination with a receptace and vacuum eommunicating means, of a cover provided with -teat-eup connections, a valve easing Acarried by said cover, an oscillating. valve Vloxlnted 1n the casxng,'sa1d easing provided with a communication between the interior ot the casing and the vaeunm communication means. a cylinder provided with ports trom its ends to said-valve, 'arried by said casing', a double-acting piston operable therein, said valve having` ports therein adapted to intermittently place .the connection in rommnnirat-ion with the vacuum mean` and with the atmosphere and alternately place the opposite ends of the cylinder in communiration with Said means and with the atmosphere. and a lost motion connection between the pieton and valve whereby the valve `.vill he moved after an initial movement` of the piston.

T. ln a milking;r apparatus, the combination with a receptacle and vacuum communicating means, of a cover provided with a teat'cnp connection, a valve casing?r carried by .said cover, an oscillating valve mounted in the casing, a` cylinder carried b v said easing, provided with ports from its ends to said' valve, a double-actingr piston operable therein, said valve having ports therein adapted to intermittently plaeethe connection in y communication with the vacuum means and with the atmosphere, and alternately placing the opposite ends of the cylinder in communication with said meaneand with the atmosphere, means connecting the piston to the valve whereby the` valveV will be moved upon the movement of the piston, land means for controlling the rapidity of the movement of the piston.

In testimony whereef I alix my signature in 'presence of two witnesses.

- LAURITS DINESEN. W itnesses:

CLARA DEMAREST, F. D. MERCHANT. 

